Ok. AA73, here's the quick and dirty differences.
If I'm a CA at AA, and I don't want to say anything on the PA or stand at the door and say goodbye to the freight as it exits the airplane, I don't have to.
In corporate, you HAVE to be, first and foremost, a concierge, travel agent, F/A and ramper (hauling trash and dumping lavs--everything!) depending on the needs at the moment. You have to be motivated, self-starting and proactive. You wait for stuff to happen or for the ramp guys in the FBO to do something and you WILL end up looking like a lazy idiot when Mr. Big shows up 15 min. early. The flying is, to the pax, a non-event UNLESS you make it an event. THEN it's a big deal.
At AA, you get 13-17 days off. Free. Clear. If CCS calls, you don't answer. You want to run over to Paris on your 8 day spread between months? Have at it.
At many corporate jobs you get significantly fewer days off. You may not fly much but you can't leave town--just in case. Many operations don't have sick days. (Yeah, I know you're not supposed to fly sick. We all know better...)
These are the basic differences but the corporate job is so much more nuanced that the airlines. It's certainly not for everyone.
Personally, I'm bored to death right now. Flying to "the four corners" with stops through the hubs gets monotonous. Not complaining--I'm happy to have a job but I certainly don't get all tingly 'strapping on the jet' these days.
Corporate is challenging--CONSTANTLY. You must guard against F-ups ALL THE TIME. It's stressful but rewarding--when you pull off a big play and avoid a disaster (Mr. Big never knowing how close he came to seeing chaos...) it's a great feeling. Until the next disaster aversion exercise.
No job is perfect. If you want out of the airlines bad enough, you can pull it off like njcapt did. It will take a lot of work and you will be suspect for a long time but you can do it.
I think a lot of the bad blood comes from airline people who think they want a corporate job but once they get into the job, they just don't like it. Never mind that that individual ran back to the airlines and never set foot in a bizjet again--it's one more story about an airline guy who bailed.
TC
ETA: I will say that while airline guys who bail get a bad rap there are a bazillion examples of corporate guys coming and going but "they just didn't fit in". If you're a corporate guy and you leave a job after a few months, you get a pass. If you're airline, you get slammed. That's just the way it works.